If the secondary lpars share the same repository and do not run the CEMELDAP task for CA LDAP Server or the CEMETOM for the TOMCAT server only the primary lpar needs a MAPDB file and that MAPDB file can be shared by the other lpars. If an empty MAPDB file is pointed to by the secondary CEVM component tasks such as CEMWHSE, CEMMON and CEMALERT the tasks may abend due to an invalid MAPDB file.